XML 101 R92.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2
Related-party balances and transactions (Details Narrative) - BRL (R$)
R$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
IfrsStatementLineItems [Line Items]      
Additional retirement and pension benefits paid R$ 1,605,832   R$ 1,583,449
Actuarial liability amount 2,095,517   2,098,622
Other liabilities, current 9,197   8,876
Other liabilities, non-current 103,572   99,279
Expenses related to personnel assigned by SABESP to other state government entities 3,518 R$ 672  
Non-operating assets 3,613   3,613
Net actuarial liability 35,713   44,249
Compensation to officers 2,470 1,658  
Bonus program 540 R$ 285  
Balance of principal and interest of Sabesp Olimpia 81,059    
Financing amount 1,136   1,278
Aguas De Andradina [Member]      
IfrsStatementLineItems [Line Items]      
Other assets, current 812   694
Other assets, non current R$ 2,814   R$ 2,814